Different resolutions streaming firefox in Windows and LInux

I’ve found that when watching a movie with firefox on the tubi site that if I’m in Windows it offers 720p, but in linux it only offers 480p. What is that about?

To clarify…

Things that are the same in both instances:
firefox web browser
tubi webiste
movie on tubi website

Things that are different:
OS used

In Windows 720p
In linux 480p

Same add-ons ?
webrender true on both installs ?

yea, they do that.
i get different for all my devices from chromecast+googletv, firestick, roku, fire tablet & my rpi400 i use the most.

can’t be helped, they decide what they want to serve.